The content of the invention
It is an object of the invention to provide a kind of layout machine removing the work mechanism and the layout machine with the removing the work mechanism, to guarantee
Cloth can completely be compressed when being patted by depression bar, it is to avoid the phenomenon of fold occurs in cloth.
To achieve these goals, the invention provides a kind of layout machine removing the work mechanism, comprising being arranged on layout machine head
On frame, for pat be laid on layout machine paving cloth platform on cloth depression bar, be arranged in the frame be used for drive institute
State depression bar to compress or unclamp the transmission device of the cloth, be arranged in the frame and be used to drive the driving of the transmission device
Device;
Wherein, the transmission device has an one rotating shaft, and the driving means and the transmission device gyroaxis
End is fixedly connected, and, when the gyroaxis for driving the transmission device is rotated forward, the depression bar is towards the back of the body for the driving means
Side from the paving cloth platform is moved, and the depression bar is lifted the release cloth;And work as the driving means release institute
After stating the active force on transmission device gyroaxis, the depression bar is moved towards the side of the paving cloth platform, and the depression bar is certainly
The cloth is pushed down by falling.
In addition, present invention also offers a kind of layout machine, the layout machine includes layout machine removing the work mechanism as above.
The present invention is by driving because the depression bar of layout machine removing the work mechanism is when cloth is compressed compared with the existing technology
Device discharges completely the active force on gyroaxis, so that depression bar can realize the compression to cloth in the presence of self gravitation,
And when depression bar needs to unclamp cloth, by driving means gyroaxis can be driven to rotate forward again, so that transmission device can be straight
Connect the release for lifting depression bar realization to cloth.It follows that the shaft end of gyroaxis is only when depression bar needs to lift release cloth
The active force of device can be just driven, and when depression bar compresses cloth, driving means are to discharge transmission device revolution completely
The active force of axle shaft end, by the gravity of depression bar and transmission device itself cloth is pushed down, so as to avoid gyroaxis from being driven for a long time
The active force of dynamic device and cause depression bar the phenomenon of skew occur, it is ensured that can completely and cloth during the resonable plain cloth material of whole depression bar
It is adjacent to, to ensure that cloth is not in buckling phenomena when being routed on paving cloth platform.
Further, push rod connection of the driving means comprising the cylinder and the cylinder being arranged in the frame
Fixed seat and the fixed seat and the gyroaxis connection rocking arm;Wherein, one end of the rocking arm is same with the gyroaxis
Axle is fixed, and the other end of the rocking arm is connected with each other with the fixed seat by articulated elements, and driving means release institute
State when stating the active force on transmission device gyroaxis is that after the cylinder dead electricity, its internal push rod is from the cylinder interior
State when being drawn out.It follows that whole transmission device under the pulling of ejecting rod of cylinder, can realize the lift action of depression bar,
And when depression bar is in removing the work, the current supply circuit for disconnecting cylinder can be passed through again, so that whole cylinder is in power failure state, it is ensured that cylinder
Push rod can smoothly be pulled out under the Action of Gravity Field of depression bar and transmission device, so as to complete compression of the depression bar to cloth.
Or, the driving means are the motor being arranged in the frame;Wherein, the main shaft of the motor with described time
Rotating shaft is coaxially fixed, and state of driving means when discharging the active force on the transmission device gyroaxis is the motor
State after dead electricity, when main shaft thereon is freely rotated under the drive of the transmission device.It can thus be appreciated that due to driving means
For motor, the rotation of transmission device gyroaxis is realized by the rotation of electric machine main shaft, so as to realize the lift action of depression bar, and worked as
Depression bar can pass through the current supply circuit for disconnecting motor in removing the work, again, so that whole motor is in power failure state, it is ensured that the master of motor
Axle can freely be rotated under the Action of Gravity Field of depression bar and transmission device, so as to complete compression of the depression bar to cloth.
Further, the transmission device is included and is connected and drives the depression bar with the depression bar and the gyroaxis respectively
It is described paving cloth platform on moved up and down rotary support, be arranged in the frame gyroaxis is supported
Support seat.So that it is in the actual course of work, by gyroaxis rotary support can be driven to carry out flip-flop movement, so as to realize pressure
Compression and release of the bar to cloth.
Further, the rotary support includes the first swing arm for being fixedly connected with the two ends of the gyroaxis respectively and the
Second linking arm of first linking arm and second swing arm connection of two swing arms and first swing arm connection;Wherein, institute
The two ends for stating depression bar are hinged respectively with first linking arm and second linking arm.
Further, between first linking arm and first swing arm, second linking arm and second pendulum
It is connected with each other by articulated elements between arm, and is locked by locking member.By between the first linking arm and the first swing arm
Be hinged, being hinged between the second linking arm and the second swing arm, be capable of achieving the angular adjustment of the first linking arm and the second linking arm,
To ensure that depression bar sufficiently can be adjacent to cloth.
Further, the rotary support is also included across using between first linking arm and second linking arm
In the connecting rod for connecting first linking arm and second linking arm.By setting between the first linking arm and the second linking arm
Connecting rod is put, the intensity of whole rotary support can be improved, it is to avoid rotary support metaboly occurs after Jing long-time uses.
Further, the two ends of the frame are further respectively had for propping up first swing arm and second swing arm
Padded part, and the padded part is comprising for propping up the cushion block of the first swing arm or the second swing arm, be installed in the frame
Gripper shoe, be used on the gripper shoe to adjust the adjustable plate of the cushion block height;Wherein, the length of the adjustable plate
More than the length of the gripper shoe, and it is partially exposed at beyond the gripper shoe and is used to fix the cushion block, and the regulation
Plate is located at the part within the gripper shoe and is fixedly connected with the gripper shoe by stopping screw.Due to being additionally provided with frame
For padded first swing arm and the padded part of the second swing arm, and by changing padded part between adjustable plate and gripper shoe
Distance is capable of achieving the first swing arm and the second swing arm angular adjustment in upset, to ensure that depression bar can be pushed down with different-thickness
Cloth, to realize patting different-thickness cloth in laying.
Further, the cushion block is to make elastic cushion block using nonmetallic elastic memory cloth.So that revolution
Impulsive force of first swing arm and the second swing arm of support when elastic keel is abutted against every time can be effectively suppressed, it is to avoid
There is deformation or breakage phenomenon in first swing arm and the second swing arm.
Further, the layout machine removing the work mechanism also includes to be arranged in the frame and is used to connect the rotary support
The first swing arm and the second swing arm and with elastic stretching part stretching device;Wherein, the stretching device is with described first
After swing arm and second swing arm connection, the elastic stretching part of the stretching device is in all the time the state being stretched, and described
The pulling force of elastic stretching part is less than the depression bar and the total force of the rotary support.So as to work as removing the work mechanism by driving means
When control depression bar and rotary support are lifted, the elastic stretching part of stretching device can drive rotary support to lift depression bar for driving means
The active force of provided auxiliary, so as to greatly reduce the power of driving means, therefore driving means may be selected lower-powered setting
It is standby, so as to reduce production cost, and while reduce whole layout machine power consumption operationally.
Further, the stretching device comprising be arranged on the frame two ends first support bar and second support bar,
Connect the first extension spring, the connection second support bar and second swing arm of the first support bar and first swing arm
Second extension spring;Wherein, first extension spring and second extension spring constitutes the elastic stretching part of the stretching device.Due to stretching
First extension spring and the second extension spring of device are distributed in respectively the two ends of frame by first support bar and second support bar, and directly
It is connected with first swing arm and the second swing arm of rotary support respectively, so that whole stretching device is to produced by rotary support
Active force, can uniformly act on the two ends of whole rotary support, with guarantee rotary support drive depression bar lift when
Reliability and stability.
Further, first extension spring and one end that first swing arm is connected, second extension spring and described second
One end of swing arm connection is equipped with hook, and is equipped with first swing arm and second swing arm for being hooked by the hook
Suspension ring firmly.So that being detachable between the first extension spring and the second extension spring and the first swing arm of rotary support and the second swing arm
Connection, be easy to the assembling and replacing of the first extension spring and the second extension spring.
Further, between first extension spring and the first support bar, second extension spring and described second is supported
It is connected with each other by articulated elements between bar;Wherein, first extension spring and the first support bar, second extension spring and institute
Second support bar is stated for by being mutually pivotable between the articulated elements corresponding to each.Pass through back driving means so as to work as
Rotating shaft is connected when driving rotary support to overturn because extension spring is rotated with support bar by articulated elements realization, so that
Angle between extension spring and support bar can further change with the variable angle between extension spring and rotary support, it is to avoid extension spring
Torsional deformation, it is ensured that extension spring can be on same axis all the time to the active force of rotary support with the length direction of extension spring, so that
Extension spring is obtained when rotary support is pulled, its active force can keep all the time maximum.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with each reality of the accompanying drawing to the present invention
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the invention,
In order that reader more fully understands the application and proposes many ins and outs.But, even if without these ins and outs and base
Many variations and modification in following embodiment, it is also possible to realize each claim of the application technical side required for protection
Case.
The first embodiment of the present invention is related to a kind of layout machine removing the work mechanism, as shown in figure 1, include being arranged on layout machine
Frame 1 on head, the depression bar 2 for patting the cloth being laid on cloth platform (not indicating in figure), it is arranged in frame 1 and uses
In drive depression bar 2 compress or unclamp cloth transmission device, be arranged in frame 1 for driving transmission device driving means.
In practical application, when head is while cloth is routed on cloth platform, driving means driving transmission device band can be passed through
Dynamic pressure bar compresses cloth, to ensure that cloth can be patted while laying by depression bar 2.
Wherein, transmission device has an one rotating shaft 3, and driving means are fixed with the end of transmission device gyroaxis 3 and connected
Connect, when the gyroaxis 3 for driving transmission device is rotated forward, depression bar 2 faces away from spreading the side of cloth platform and transported driving means
Dynamic, depression bar 2 is lifted release cloth;And work as after the active force that the driving means are discharged on the transmission device gyroaxis, institute
State depression bar 2 to be moved towards the side of paving cloth platform, depression bar freely falls and pushes down cloth.
By the above it is seen that, due to layout machine removing the work mechanism depression bar 2 compress cloth when, be by drive
Device discharges completely the active force on gyroaxis 3, so that depression bar 2 can realize the pressure to cloth in the presence of self gravitation
Tightly, and when depression bar 2 needs to unclamp cloth, by driving means gyroaxis 3 can be driven to rotate forward again, so that transmission device
Depression bar 2 can directly be lifted and realize the release to cloth.It follows that the shaft end of gyroaxis 3 only needs to lift release in depression bar 2
The active force of device can be just driven during cloth, and when depression bar 2 compresses cloth, driving means are to discharge transmission dress completely
The active force of rotating shaft shaft end is put back into, cloth is pushed down by the gravity of depression bar 2 and transmission device itself, so as to avoid depression bar 2 in pressure
Firmly during cloth, depression bar 2 is caused the phenomenon of skew occur because of the active force that gyroaxis 3 is driven for a long time device, it is ensured that whole
Can be adjacent to cloth completely during the resonable plain cloth material of depression bar 2, to ensure that cloth is not in pleat when being routed on paving cloth platform
Wrinkle phenomenon.
Specifically, in the present embodiment, as shown in figure 1, driving means comprising be arranged on cylinder 4 in frame 1,
The fixed seat 6 being connected with the push rod 5 of cylinder 4 and fixed seat 6 and the rocking arm 7 of the connection of gyroaxis 3.Wherein, one end of rocking arm 7 with
Gyroaxis 3 is coaxially fixed, and the other end of rocking arm 7 is connected with each other with fixed seat 6 by articulated elements (not indicating in figure).In reality
Application process in, state when whole driving means discharge the active force on transmission device gyroaxis 3 is the dead electricity of cylinder 4
Afterwards, state when its internal push rod 5 is drawn out from inside cylinder 4.It follows that whole transmission device can be in ejecting rod of cylinder 5
Pulling under, realize the lift action of depression bar, and when depression bar 2 is in removing the work, the current supply circuit for disconnecting cylinder 4 can be passed through again, with
Whole cylinder 4 is set to be in power failure state, it is ensured that the push rod 5 of cylinder 4 can be suitable under the Action of Gravity Field of depression bar 2 and transmission device
Profit is pulled out, so as to complete compression of the depression bar 2 to cloth.
In addition, it is necessary to explanation, driving means are except adopting what cylinder 4 was rotated as driving gyroaxis 3
Beyond power set, in the present embodiment, driving means can also adopt a motor being arranged in frame 1.And in reality
When border is assembled, main shaft and the gyroaxis of motor can coaxially be fixed by shaft coupling, so as in practical application, whole driving means
State when discharging the active force on transmission device gyroaxis is that main shaft thereon is under the drive of transmission device after motor dead electricity
State when freely rotating.Thus such as when driving means adopt motor, realize that transmission device is returned by the rotation of electric machine main shaft
The rotation of rotating shaft, so as to realize the lift action of depression bar, and when depression bar 2 is in removing the work, the power supply that can pass through to disconnect motor again is returned
Road, so that whole motor is in power failure state, it is ensured that the main shaft of motor can be under the Action of Gravity Field of depression bar 2 and transmission device certainly
By rotating, so as to complete compression of the depression bar 2 to cloth.
In addition, it is noted that in the present embodiment, the above-mentioned transmission device being previously mentioned is as shown in figure 1, main bag
Containing with depression bar 2 and gyroaxis 3 being connected and drive rotary support 8 that depression bar 2 moved up and down on Pu Butai respectively, be arranged on
Gyroaxis 3 is supported support base in frame 1, so that it can be driven back in the actual course of work by gyroaxis 3
Turning support 8 carries out flip-flop movement, realizes compression and release of the depression bar 2 to cloth.Also, in the present embodiment, the support base
Mainly it is arranged in frame 1 and gripper shoe 12-1 with through hole is constituted by multiple, and in order to ensure whole support base energy
It is enough that effective support is carried out to gyroaxis 3, each piece of gripper shoe 12-1 in the support base can equidistantly be arranged along the length direction of frame 1
Row, so as to during practical set, gyroaxis 3 be sequentially passed through in the through hole of every piece of gripper shoe 12-1, are ensured with this
Stress of the whole one rotating shaft 3 on each position is relative equilibrium, it is to avoid gyroaxis 3 occurs showing for local tilting when rotating
As.Meanwhile, in order to ensure that gyroaxis 3 wear phenomenon occurs in revolution, one can be arranged in the through hole of every piece of gripper shoe 12-1
The individual bearing holder (housing, cover) (not indicating in figure) being set on gyroaxis 3, so as to avoid gyroaxis 3 revolution when with gripper shoe 12-1 it
Between occur abrasion.
Also, the above-mentioned rotary support 8 being previously mentioned is mainly by the first swing arm 8- being fixedly connected with the two ends of gyroaxis 3
1 and second swing arm 8-2 and the first swing arm 8-1 connection the first linking arm 8-3 and the second swing arm 8-1 connection the second linking arm
8-4.Wherein, the two ends of depression bar 2 are hinged respectively with the first linking arm 8-3 and the second linking arm 8-4, so as to work as cloth logical
When crossing depression bar 2, depression bar 2 can with cloth by and rotate, reduce abrasion to cloth.Meanwhile, in order to realize the first company
The angular adjustment of arm 8-3 and the second linking arm 8-4 is connect, to ensure that depression bar 2 sufficiently can be adjacent to cloth, as shown in figure 1, can
To be respectively adopted what is be hinged between first linking arm 8-3 and the first swing arm 8-1, between the second linking arm 8-4 and the second swing arm 8-2
Mode connects, specifically can between the first linking arm 8-3 and the first swing arm 8-1, the second linking arm 8-4 and the second swing arm 8-2 it
Between be respectively provided with an articulated elements (not indicating in figure), being mutually pivotable between both is realized by articulated elements, and complete
Into after the angular adjustment of the first linking arm 8-3 and the second linking arm 8-4, can be locked by locking member again.
Additionally, the intensity in order to further improve very whole rotary support 8, as shown in figure 1, the rotary support 8 is also included
Across being used for connection the first linking arm 8-3 and the second linking arm 8-4 between the first linking arm 8-3 and the second linking arm 8-4
Connecting rod 8-5.By arranging connecting rod 8-5 between the first linking arm 8-3 and the second linking arm 8-4, whole rotary support 8 can be improved
Intensity, it is to avoid there is metaboly after Jing long-time uses in rotary support 8.Meanwhile, as shown in figure 1, the first swing arm 8-1
And second may also be employed same mode between swing arm 8-2, specifically by between the first swing arm 8-1 and the second swing arm 8-2
Column 8-6 is set, the intensity of whole rotary support 8 can further improve by column 8-6, it is to avoid deformation occurs in rotary support 8
Phenomenon.
Second embodiment of the present invention is related to a kind of layout machine removing the work mechanism, and second embodiment is in the first embodiment party
Further improvement is made on the basis of in formula, it is mainly improved by:In the present embodiment, as shown in Figures 2 and 3, frame
1 two ends further respectively have the padded part 9 for propping up the first swing arm 8-1 and the second swing arm 8-2.
Specifically, as shown in figure 3, the padded part 9 is included for propping up the first swing arm 8-1's or the second swing arm 8-2
Cushion block 9-1, gripper shoe 9-2 being installed in frame 1, it is used on gripper shoe 9-2 to adjust the adjustable plate of cushion block 9-1 height
9-3.Wherein, the length of adjustable plate 9-3 is more than the length of gripper shoe 9-2, and adjustable plate 9-3 completes assembling with gripper shoe 9-2
With adjustable plate 9-3 is partially exposed at beyond gripper shoe 9-2 to be used to fix cushion block 9-1, and adjustable plate 9-3 is located at gripper shoe 9-2
Within part can be fixedly connected with gripper shoe 9-2 by stopping screw (not indicating in figure).
By the above it is seen that, during practical application, cushion block 9-1 can be used as propping up the first swing arm
The support member of 8-1 and the second swing arm 8-2, while user can utilize the rotation of the instruments such as external tool, such as screwdriver to stop head spiral shell
Silk, the distance between adjustable plate 9-3 and gripper shoe 9-2 are adjusted by this kind of mode, to realize to the first swing arm 8-1 and second
Angles of the swing arm 8-2 in upset is adjusted, right to realize to ensure that depression bar 2 can push down the cloth with different-thickness
Different-thickness cloth patting in laying.
In addition, it is noted that in the present embodiment, cushion block 9-1 is using nonmetallic elastic memory cloth system
Into elastic cushion block.So as to when the first swing arm 8-1 and the second swing arm 8-2 of rotary support 8 are when elastic keel is abutted against every time
Impulsive force can be effectively suppressed, it is to avoid there is deformation or breakage phenomenon in the first swing arm 8-1 and the second swing arm 8-2.Meanwhile,
Because the first swing arm 8-1, the second swing arm 8-2 are respectively flexible contacts between cushion block 9-1 so that the first swing arm 8-1 and
Second swing arm 8-2 can also with the fluctuating dress of design on fabric surface carry out on cushion block 9-1 soon it is slight fluctuate, but be unlikely to
Depart from cushion block 9-1, so as to the pressure that whole rotary support 8 and depression bar 2 apply to cloth can be reduced to a certain extent, it is to avoid because
Pressure is excessive and causes the cloth cannot normal laying.
Third embodiment of the present invention is related to a kind of layout machine removing the work mechanism, and the 3rd embodiment is first and second
Further improvement is made on the basis of embodiment, it is mainly improved by:As shown in figure 4, the layout machine reason of present embodiment
Cloth mechanism is also comprising the first swing arm 8-1 and the second swing arm 8-2 being arranged in frame 1 for connecting rotary support 8 and with bullet
The stretching device of property tensioning member.
Wherein, the stretching device is with the first swing arm 8-1 and the second swing arm 8-2 after being connected, the elastic stretching of stretching device
Part state all the time in being stretched, and the pulling force of elastic stretching part is less than depression bar and the total force of rotary support.
By the above it is seen that, lift when removing the work mechanism controls depression bar 2 and rotary support 8 by driving means
When, the elastic stretching part of stretching device can be that driving means drive rotary support 8 to lift the active force of the provided auxiliary of depression bar 2, from
And the power of driving means is greatly reduced, therefore driving means may be selected lower-powered equipment, so as to reduce production cost,
And while reduce whole layout machine power consumption operationally.
Specifically, as shown in figure 4, stretching device includes first support bar 10-1 and second for being arranged on the two ends of frame 1
Support bar 10-2, connection first support bar 10-1 and the first swing arm 8-1 the first extension spring 10-3, connection second support bar 10-2 and
The second extension spring 10-4 of the second swing arm 8-2.Wherein, the first extension spring 10-3 and the second extension spring 10-4 constitutes the elasticity drawing of stretching device
Stretch part.
Thus it is seen that, due to stretching device the first extension spring 10-3 and the second extension spring 10-4 respectively by first support
Bar 10-1 and second support bar 10-2 are distributed in the two ends of frame 1, and directly respectively with the first swing arm 8-1 of rotary support 8 and
Second swing arm 8-2 connects, so that whole stretching device can be acted on uniformly the active force produced by rotary support 8
At the two ends of whole rotary support 8, to guarantee reliability and stability of the rotary support 8 when driving depression bar 2 to lift.
It is noted that as shown in figure 4, in the present embodiment, the first extension spring 10-3 is connected with the first swing arm 8-1
One end that one end, the second extension spring 10-4 are connected with the second swing arm 8-2 is equipped with hook 10-5, and the first swing arm 8-1 and second puts
It is equipped with arm 8-2 for hooking the suspension ring (not indicating in figure) that 10-5 is lived by hook.So that the first extension spring 10-3 and second
It is dismountable connection between extension spring 10-4 and the first swing arm 8-1 and the second swing arm 8-2 of rotary support 8, in order to the people that works
Assembling and replacing of the member to the first extension spring 10-3 and the second extension spring 10-4.
In addition, in the present embodiment, as shown in figure 5, between the first extension spring 10-3 and first support bar 10-1, second drawing
Can be connected with each other by articulated elements between spring 10-4 and second support bar 10-2.Wherein, the first extension spring 10-3 and first is supported
Bar 10-1, the second extension spring 10-4 and second support bar 10-2 are used for by mutual pivot between each corresponding articulated elements
Turn.Also, the articulated elements is as shown in figure 5, comprising a stud being connected with first support bar 10-1 or second support bar 10-2
11-1, and a plate-type structural piece 11-2 being connected with stud 11-1, and plate-type structural piece 11-2 and first support bar 10-1
Or second support bar 10-2 is oppositely arranged.
Meanwhile, the installation of the first extension spring 10-3 and the second extension spring 10-4 for convenience, as shown in figure 5, also can draw first
One end that spring 10-3 is connected with first support bar 10-1, and the one end being connected with second support bar 10-2 in the second extension spring 10-4
A hook 10-6 is equipped with, by linking up with 10-6 stud 11-1 on articulated elements is caught on, so as to realize the first extension spring 10-3 and the
The connection of one support bar 10-1, and the connection of the second extension spring 10-4 and second support bar 10-2.
By the above, gyroaxis 3 is passed through when driving rotary support to overturn, due to two drawings when driving means are made
It is to realize rotating connection by articulated elements between spring and two support bars, so that the angle between two extension springs and two support bars
With the variable angle between extension spring and rotary support 8 and then can change, it is to avoid extension spring torsional deformation, it is ensured that two extension springs pair
The active force of rotary support 8 can be all the time with the length direction of extension spring on same axis, so that two extension springs are pulling revolution
During support 8, its active force can keep all the time maximum so that whole rotary support can more easily be reversed, to realize pressure
Bar 2 is lifted.
4th embodiment of the present invention is related to a kind of layout machine, and the layout machine is comprising such as first, second, and third enforcement
Layout machine removing the work mechanism described in mode.
By the above it is seen that, due to layout machine removing the work mechanism depression bar 2 compress cloth when, be by drive
Device discharges completely the active force on gyroaxis 3, so that depression bar 2 can realize the pressure to cloth in the presence of self gravitation
Tightly, and when depression bar 2 needs to unclamp cloth, by driving means gyroaxis 3 can be driven to rotate forward again, so that transmission device
Depression bar 2 can directly be lifted and realize the release to cloth.It follows that the shaft end of gyroaxis 3 only needs to lift release in depression bar 2
The active force of device can be just driven during cloth, and when depression bar 2 compresses cloth, driving means are to discharge transmission dress completely
The active force of rotating shaft shaft end is put back into, cloth is pushed down by the gravity of depression bar 2 and transmission device itself, so as to avoid depression bar 2 in pressure
Firmly during cloth, because gyroaxis 3 is driven the active force of device for a long time, there is the phenomenon for offseting in caused depression bar 2, it is ensured that whole
Can be adjacent to cloth completely during the resonable plain cloth material of root depression bar 2, to ensure that cloth is not in when being routed on paving cloth platform
Buckling phenomena.
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific embodiment of the present invention,
And in actual applications, can in the form and details to it, various changes can be made, without departing from the spirit and scope of the present invention.